Wateen are the biggest rip-off's ever! I would seriously avoid them. I originally paid around Rs.6'000 for my connection & was told that i would get a refund of Rs.3'000 on it if i wasn't happy.
When i got the refund they said i'm only getting Rs.500 as they've changed their policies. On top of that you get inflated bills for downloading stuff.
I don't think we have maxcom in peshawar so my advice is stick to ptcl, unlimited downloading 1GB for Rs.2'000. No installation charges either, unlike wateen.
If you can't do without wireless, just get yourself a wireless router.